Flood in Lower Kuskokwim Valley, Alaska

Flood April 27, 2020 – April 30, 2020 · Lower Kuskokwim Valley, Alaska

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Minor ice jams cause minor flooding at the villages of Sleetmute and Crooked Creek.

The wider storm

An unusually high amount of snowfall, combined with an anamolously cold April set the precedent conditions for an impactful break up season. Ice was thicker across the rivers than it had been for several years. A rapid warm up across Interior Alaska caused upstream snow melting, leading to ice jams and widespread flooding along the lower Kuskokwim River.

Began near Sleetmute (61.7405, -157.0284).

Source: NOAA Storm Events Database, event 889058. Narratives are written by the National Weather Service forecast office that issued the report.

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